Automobile exterior trimming part heating circuit manufacturing structure and manufacturing method thereof

Abstract

The invention belongs to the technical field of automobile heating circuits, and provides an automobile exterior trimming part heating circuit manufacturing structure and a manufacturing method thereof.The automobile exterior trimming part heating circuit manufacturing structure comprises a base material, a metal conductive layer is formed on the base material, and the base material is divided into a conductive circuit area and a non-conductive circuit area; wherein a photoresist layer used for preventing the metal conductive layer from being removed during etching is arranged on the surface of the metal conductive layer on the conductive circuit area, manufacturing is carried out through the steps of injection molding, PVD metal conductive layer plating, photoresist spraying, exposure, developing, etching, cleaning and the like, the production cost can be reduced by 30% or above, the process is simple, and the production efficiency is high. According to the invention, a circuit can be directly formed on a product with a 3D complex structure, and a traditional IML process is not needed.

Description

technical field [0001] The invention belongs to the technical field of automobile heating circuits, and relates to a manufacturing structure and a manufacturing method of a heating circuit of an automobile exterior trim. Background technique [0002] With the iterative update of the automobile industry, people have higher and higher requirements for automobiles. Various new energy vehicles, autonomous driving vehicles, and smart vehicles are gradually being launched on the market. Major automobile OEMs and auto parts suppliers have increased investment in research and development. Competing for future market share, among which the radar function of the car is indispensable for future cars. In order to ensure that the radar function of the car can function normally in various complex weather conditions or environments, the radar waves will not be blocked by rain, snow and frost, causing radar If the function cannot be used, the existing process structure is complex, mainly in...

AI Technical Summary

Problems solved by technology

[0002] With the iterative update of the automobile industry, people have higher and higher requirements for automobiles. Various new energy vehicles, autonomous driving vehicles, and smart vehicles are gradually being launched on the market. Major automobile OEMs and auto parts suppliers have increased investment in research and development. Competing for future market share, among which the radar function of the car is indispensable for future cars. In order to ensure that the radar function of the car can function normally in various complex weather conditions or environments, the radar waves will not be blocked by rain, snow and frost, causing radar If the function cannot be used, the existing process structure is complex, mainly including six processes including scraping and embedding conductive wire, lamination, thermoforming, punching, and secondary injection molding --- surface hardening, so that the conductive wire can be seen on the luminescent product. Silk thread affects the appearance, the mass production yield is low, and the requirements for the production environment are high. The IML process is likely to cause circuit breakage due to the stretching of the diaphragm during molding.

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